The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 25, 2020
Filed:
Sep. 22, 2016
Apple Inc., Cupertino, CA (US);
Vladislav Petkov, Cupertino, CA (US);
Haining Zhang, Cupertino, CA (US);
Karan Sanghi, Cupertino, CA (US);
Saurabh Garg, Cupertino, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Methods and apparatus for enabling a peripheral processor to retrieve and load firmware for execution within the constraints of its memory. The peripheral processor is allocated a portion of the host processor's memory, to function as a logical secondary and tertiary memory for memory cache operation. The described embodiments enable the peripheral processor to support much larger and more complex firmware. Additionally, a multi-facetted locking mechanism is described which enables the peripheral processor and the host processor to access the secondary memory, while minimally impacting the other processor.